Relaxed fit, mid rise, 4-way stretch waterproof pants. Elastic gaiters, cuff protection, and zippered vents are just a few of the ski-specific details that will make these a favorite every season. The high-performance version of the popular Formula Pant is cut for skiers with thunder thighs and has added ventilation along the back to cool those pistons. 4-way stretch waterproof fabric allows easy movement and keeps out wet snow. 3deFX+™, a thin, elastic, insulating layer with an amazing warmth-to-weight ratio keeps legs warm without slowing you down.